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Study on hydrogen production by co-gasification of coal and biomass in a fluidized bed

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Study on hydrogen production by co-gasification of coal and ...

第九届全国氢能学术会议

作者： K.z.Li,R.zhang,J.C.Bi Institute of Coal Chemistry,China

＜正＞Biomass gasification is one of relatively new methods for hydrogen production from renewable ***,single gasification of biomass is relatively high-cost due to the seasonal production of biomass and produces relatively the large amount of tar because of the low gasification ***-gasification of coal and biomass has been put forward as a

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The solution of ρπ puzzle in charrnonium physics

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The solution of ρπ puzzle in charrnonium physics

第九届全国粒子物理学术会议

作者： Ping Wang IHEP,Beijing,China work in collabortion with C.z.Yuan and X.H.Mo

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慢性阻塞性肺疾病加重期间肠道和肺部微生物的动态变化

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中华医学杂志 2020年第40期100卷 3146-3146页

作者： Sun z zhu QL Shen Y 曾雪涛(编译) 不详江苏大学附属宜兴医院呼吸与危重症医学科

肠道-肺微生态系统紊乱和调节障碍在慢性阻塞性肺疾病(COPD)恶化过程中发挥关键性作用然而,COPD急性加重期肠道-肺菌群的动态变化及其在疾病病因学中的潜在作用仍知之甚少。研究者为了解慢性阻塞性肺疾病急性加重期(AECOPD)肠道和肺部... 详细信息

肠道-肺微生态系统紊乱和调节障碍在慢性阻塞性肺疾病(COPD)恶化过程中发挥关键性作用然而,COPD急性加重期肠道-肺菌群的动态变化及其在疾病病因学中的潜在作用仍知之甚少。研究者为了解慢性阻塞性肺疾病急性加重期(AECOPD)肠道和肺部微生物的动态变化,在15例AECOPD患者急性发作第1、7天和第4天纵向收集90份标本(痰液和粪便标本各45份)。

关键词：粪便标本调节障碍慢性阻塞性肺疾病加重期潜在作用微生态系统疾病病因急性发作肠道

德国上帕拉蒂尼地壳断面大陆科学深钻主井硫同位素地球化学

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物探化探译丛 1995年第1期 37-41页

作者： Berner,z 唐雪云

波长对Ag/TiO_2催化剂上二氧化碳光催化还原的影响(英文)

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催化学报 2011年第5期32卷 812-815页

作者： K.KOí K.zATLOUKALOV L.OBALOV S.KREJíKOV z.LACNY L.APEK A.HOSPODKOV O.OLCOV Faculty of Metallurgy and Material Engineering VB-Technical University of Ostrava Institute of Chemical Process Fundamentals CAS Faculty of Chemical Technology University of PardubiceStudentská95 Institute of Physics of the ASCR v.v.i.

Photocatalytic reduction of CO2 by water was performed in the presence of a Ag/TiO2 catalyst under illumination by lamps with different wavelengths(254,365,and 400 nm).The yields of the main products(methane and methanol)were higher with the 254 nm lamp than with the 365 lamp while no products were observed with the 400 nm *** was because the electron-hole generation rate increased with increasing energy of irradiation(decreasing wavelength)and there were higher densities of electron states at higher energies in TiO2. The increased efficiency of electron-hole generation with a shorter wavelength irradiation increased the efficiency of the *** energy of the electrons excited by visible light(400 nm)was too low for CO2 photocatalytic reduction.

关键词： silver doping titania carbon dioxide reduction photocatalysis wavelength

Effect of substrate concentration on biohydrogen production in reverse micelle media

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Effect of substrate concentration on biohydrogen production ...

第九届全国氢能学术会议

作者： X.H.zhi,z.F.Ma,J.Q.Shen Institute of Chemistry,China

＜正＞Reverse micelles have been shown as efficient and stable microreactors for bio-hydrogen *** whole cells of microbes are entrapped inside reverse micelles formed by adding surfactant into organic *** have previously investigated the conditions of media on hydrogen production,i.e.,concentration of surfactant,mole ratio of water to surfactant,temperature,*** this paper,glucose,sucrose and starch were employed and the

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PREPARATION OF COMPOSITE WITH SILICA-COATED NANOPARTICLES OF MAGNETITE FOR APPLICATIONS BASED ON HYPERTHERMIA

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PREPARATION OF COMPOSITE WITH SILICA-COATED NANOPARTICLES OF...

8th International Symposium on the Industrial Applications of the Mossbauer Effect

作者： Andrade,A.L. Fabris.J.D. Ardisson,J.D. Dominques,R.z. Department of Chemistry Federal University of Ouro Preto(UFOP)35400-000 Ouro PretoMinas GeraisBrazil

Introduction It is presented a novel method to prepare magnetic core (FeO) - shell(silica) composites rendering well- dispersed nanoparticles in aqueous *** nanocomposites were prepared through a two-step process:firstly,the FeO(Mt) nanoparticles were obtained through co-precipitation,and were then dispersed in aqueous solution containing tetramethylammonium hydroxide(TMAOH)(sample

关键词： silica-coated magnetite Mssbauer spectroscopy hyperthermia.

Unveiling anneal hardening in dilute Al-doped Al_(x)CoCrFeMnNi(x = 0,0.1) high-entropy alloys

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Journal of Materials Science & Technology 2021年第32期91卷 270-277页

作者： Q.Cheng X.D.Xu P.Xie L.L.Han J.Y.He X.Q.Li J.zhang z.T.Li Y.P.Li B.Liu T.G.Nieh M.W.Chen J.H.Chen Centre for High Resolution Electron Microscopy College of Materials Science and EngineeringHunan UniversityChangsha 410082China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China Applied Materials Physics Department of Materials Science and EngineeringKTH-Royal Institute of TechnologyStockholm SE10044Sweden Department of Materials Science and Engineering University of TennesseeKnoxvilleTN37996United States Department of Materials Science and Engineering Johns Hopkins UniversityBaltimoreMD 21214USA

Anneal hardening has been one of the approaches to improve mechanical properties of solid solution alloys with the face-centered cubic(FCC) structure,whereby a considerable strengthening can be attained by annealing of cold-worked alloys below the recrystallization temperature(T_(rx)).Microscopically,this hardening effect has been ascribed to several mechanisms,*** segregation to defects(dislocation and stacking fault) and short-range chemical ordering,***,none of these mechanisms can well explain the anneal hardening recently observed in phase-pure and coarse-grained FCC-structured high-entropy alloys(HEAs).Here we report the observations,using high-resolution electron channeling contrast imaging and transmission electron microscopy,of profuse and stable dislocation substructures in a cold-rolled CoCrFeMnNi HEA subject to an annealing below T_(rx).The dislocation substructures are observed to be thermally stable up to T_(rx),which could arise from the chemical complexity of the high-entropy system where certain elemental diffusion retardation *** microstructure feature is markedly different from that of conventional dilute solid solution alloys,in which dislocation substructures gradually vanish by recovery during annealing,leading to a strength ***,dilute addition of 2 at.% Al leads to a reduction in both microhardness and yield strength of the cold-rolled and subsequently annealed(≤500℃) *** Al induced softening effect,could be associated with the anisotropic formation of dislocation substructure,resulting from enhanced dislocation planar slip due to glide plane softening *** findings suggest that the strength of HEAs can be tailored through the anneal hardening effect from dislocation substructure strengthening.

关键词： Annealing hardening Dislocation substructure strengthening High-entropy alloy Solid solution structure

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价格战的艺术:基于中国的视角(英文)

中国市场 2013年第41期 7-16页

作者： z.John zhang Dongsheng zhou University of Pennsylvania The Wharton School China-Europe International Business School

本文提出了一个框架来解析中国价格战的流行程度,该框架也可以表达出一个规划和执行的价格战的艺术。

关键词：价格战中国视角